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authorRalf Baechle <ralf@linux-mips.org>1997-06-01 03:16:17 +0000
committerRalf Baechle <ralf@linux-mips.org>1997-06-01 03:16:17 +0000
commitd8d9b8f76f22b7a16a83e261e64f89ee611f49df (patch)
tree3067bc130b80d52808e6390c9fc7fc087ec1e33c /include/asm-sparc/semaphore.h
parent19c9bba94152148523ba0f7ef7cffe3d45656b11 (diff)
Initial revision
Diffstat (limited to 'include/asm-sparc/semaphore.h')
-rw-r--r--include/asm-sparc/semaphore.h26
1 files changed, 12 insertions, 14 deletions
diff --git a/include/asm-sparc/semaphore.h b/include/asm-sparc/semaphore.h
index 48da860e4..eac2160e7 100644
--- a/include/asm-sparc/semaphore.h
+++ b/include/asm-sparc/semaphore.h
@@ -28,20 +28,18 @@ extern void __up(struct semaphore * sem);
* XXX spinlock can allow this to be done without grabbing the IRQ
* XXX global lock.
*/
-static inline int waking_non_zero(struct semaphore *sem)
-{
- unsigned long flags;
- int ret = 0;
-
- save_flags(flags);
- cli();
- if (atomic_read(&sem->waking) > 0) {
- atomic_dec(&sem->waking);
- ret = 1;
- }
- restore_flags(flags);
- return ret;
-}
+#define waking_non_zero(sem) \
+({ unsigned long flags; \
+ int ret = 0; \
+ save_flags(flags); \
+ cli(); \
+ if (atomic_read(&sem->waking) > 0) { \
+ atomic_dec(&sem->waking); \
+ ret = 1; \
+ } \
+ restore_flags(flags); \
+ ret; \
+})
/* This isn't quite as clever as the x86 side, I'll be fixing this
* soon enough.